Home / 7,907.51-11,862.71-2,642.02

Finding the Fourth Proportional to 7,907.51, 11,862.71 and 2,642.02

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Solution

The fourth proportional to 7,907.51, 11,862.71 and 2,642.02 is: 3,963.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.51 : 11,862.71 = 2,642.02 : x
  2. Step 2: Convert to fraction form
    7,907.51/11,862.71 = 2,642.02/x
  3. Step 3: Cross multiply
    7,907.51x = 11,862.71 × 2,642.02
  4. Step 4: Simplify right side
    7,907.51x = 31,341,510.47
  5. Step 5: Solve for x
    x = 31,341,510.47/7,907.51
  6. Step 6: Final answer
    x = 3,963.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.